package com.atguigu.gulimall.product.exception;

import com.atguigu.common.exception.BizCodeEnum;
import com.atguigu.common.utils.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.util.HashMap;
import java.util.Map;

/**
 * 集中处理所有异常
 */
@Slf4j
@RestControllerAdvice(basePackages = "com.atguigu.gulimall.product.controller")
public class GulimallExceptionControllerAdvice {

    @ExceptionHandler(value = MethodArgumentNotValidException.class)
    public R handleValidException(MethodArgumentNotValidException e) {
        Map<String, String> map = new HashMap<>();
        BindingResult result = e.getBindingResult();
        if (result.hasErrors()) {
            //1、获取校验的错误结果
            result.getFieldErrors().forEach(item -> {
                String field = item.getField();
                String message = item.getDefaultMessage();
                map.put(field, message);
            });
        }
        log.error("数据校验出现问题{},异常类型{}", e.getMessage(), e.getClass());
        return R.error(BizCodeEnum.VALID_EXCEPTION.getCode(), BizCodeEnum.VALID_EXCEPTION.getMsg()).put("data", map);
    }

    @ExceptionHandler(value = Exception.class)
    public R handleException(Exception e) {
        return R.error(BizCodeEnum.UN_KNOW_EXCEPTION.getCode(), BizCodeEnum.UN_KNOW_EXCEPTION.getMsg());
    }

}
